About us

BHS-Sonthofen GmbH offers innovative and efficient mechanical process solutions for mixing, crushing, recycling and filtration applications. The company focuses on developing and manufacturing machines and plants. Today, BHS-Sonthofen is a mid-sized global player with over 350 employees worldwide. The group of companies is based in Sonthofen, Germany, and has subsidiaries in the US, China and India.

Since development of the first twin-shaft batch mixer in 1888, the company has demonstrated its innovative strength time and again with numerous new products. DKX twin-shaft batch mixers are regarded as the global benchmark where demanding mixing applications in the concrete industry are concerned.

For more than 100 years, the crushing technology division of BHS has been manufacturing machines that are used for processing minerals in quarries and gravel pits and in the mining industry. The product range includes impact crushers and impact mills with horizontal and vertical shafts.

Products and services

The product range of BHS-Sonthofen for the building materials industry and mining industry contains following machine and plant solutions: 


  • Twin-shaft batch mixer (Type DKX)
  • Dry powder batch mixer (Type DMX)
  • Twin-shaft continuous mixer (Type LFK)
  • Single-shaft continuous mixer (Type MFKG)
  • Laboratory mixer 
  • Mobile concrete mixing plants
  • Continuous concrete mixing plants
  • Retrofitting concrete mixing plants
  • Mixing plants for the waste disposal sector


  • Impact crusher (Type PB)
  • Impact mill (Type PM)
  • Rotor impact mill (Type RPM)
  • VSI Rotor centrifugal crusher (Type RSMX)
  • Stationary aggregates plants


Rotor Impact Mill (RPM & RPMF)

The Rotor Impact Mill of type RPM is a high-capacity vertical shaft crusher. It is ideal in order to obtain a high crushing ratio in the case of soft or medium-soft rock (f.i. limestone). The intensive crushing effect is achieved between the horseshoe-shaped hammers and the annular steel plating. The desired grading curve is determined by the rotor speed and the adjustable annular gap.

Further reading

Twin-Shaft Batch Mixer (DKX)

The Twin-Shaft Batch Mixer of type DKX from BHS-Sonthofen is the benchmark in mixing technology. Twin-shaft mixing technology is suitable for all formulas and offers a wide range of benefits. The mixing technique has a significant effect on the quality of the mixture and the economic efficiency of the production process. Thanks to the proven design and arrangement of the mixing tools, you will achieve consistent homogeneous mixtures batch after batch in less time.

Further reading

VSI Rotor Centrifugal Crusher (RSMX)

The VSI Rotor Centrifugal Crusher of type RSMX TwinDrive is a high-performance vertical shaft crusher. It is ideal for size reduction and upgrading (cubical shaping) of material from medium-hard or hard rock. Due to the rock-on-rock crushing principle wear is reduced to very few components. The machine processes up to 580 t/h depending on the required task.

The crusher can be operated in two versions:
- Functional principle with rock shelf
- Functional principle with anvil ring

Further reading

BHS-Sonthofen GmbH
An der Eisenschmelze 47
87527 Sonthofen

Phone: +49 8321 6099-0
Fax: +49 8321 6099-220
Internet: www.bhs-sonthofen.com
E-mail: Send message

Contact person

Hans Traut
Area Sales Manager - Middle East & North Africa | Mixing & Crushing Technology
Phone: +49 172 8682444
E-mail: Send message

News & Innovations

New twin-shaft mixers for dry building materials

Individual solutions for a wide range of mixtures

Dry powder batch mixers (DMX) are adapted to the special requirements of mixing dry materials, such as cement, dry mortar, bonding compounds and dry shotcrete. Since dry building materials encompass a wide range of aggregates, cements and admixtures, different application-specific drive variants are available for the mixers with different speeds and mixing tools. These can be individually configured according to the application. With an extensive modular system and various options, they can be customized to the products of the user, from fine-grained materials such as cement to mortar mixtures with coarse particles up to 8 mm in size. BHS offers a range of machines with throughput rates of up to 300 t/h.

Compared with single-shaft mixers, they offer considerably better mixing with short mixing cycles. The DMX mixers are more compact and also represent good value for money.

More efficient crushed sand production

Rotor impact mills with a narrow milling gap produce a higher proportion of fine sand

The new rotor impact mills of type RPMF produce even finer fractions as well as output material with a significantly higher proportion of fine sand. As such, they are more efficient in producing crushed sand. The RPMF design is a variant of the rotor impact mills (RPM), which are known in the industry as ‘sand makers.’ BHS designed both types of machines to be used primarily with pre-crushed, brittle and mildly abrasive. Impact crushing has proven to be the best method for crushing these kinds of materials.

BHS-Sonthofen developed the new machine type specifically for finer output sizes. Thanks to a longer, narrower milling gap and increased circumferential speed (of up to 90 m/s) in the rotor, the RPMF archive higher reduction ration than other machines do. As a result, they provide users with output material that contains a higher proportion of fine-sand.

High-strength white concrete for the third largest mosque in the world

Twin-shaft batch mixer from BHS-Sonthofen proves its worth in a major project

Europoles delivered 618 supports made from white, high-strength spun concrete for the third largest mosque in the world in Algiers. The pole manufacturer from Neumarkt (Germany) produced the concrete for the up to 34 m high and up to 34 t columns with twin-shaft batch mixers from the BHS-Sonthofen DKX range.

The Great Mosque of Algeria is a vast cube with a capacity of up to 35,000 people. The production of total 618 octagonal concrete supports for the imposing structure was not an every-day project even for Europoles.
The Europoles plant technology department finally decided upon the most powerful and fastest mixer from BHS-Sonthofen - a DKX 1.25 with a rated output of 1.25 m³ of hardened concrete per batch. Due to its high filling degree, this mixer type is extremely compact while providing the required throughput.

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